xml解析集聚
贴上几个xml解析的程序，以后好翻阅
package com.ibm.test;import java.io.File;import org.jdom.Document;import org.jdom.Element;import org.jdom.input.SAXBuilder;import org.jdom.output.Format;import org.jdom.output.XMLOutputter;public class JDomTest {public static void main(String[] args) {SAXBuilder saxBuilder = new SAXBuilder();try {Document doc = saxBuilder.build(new File("domdb.xml"));// 首先创建好节点Element eltDb = new Element("db");Element eltDriver = new Element("driver");Element eltUrl = new Element("url");Element eltUser = new Element("user");Element eltPassword = new Element("password");// 设置节点的值eltDriver.setText("com.mysql.jdbc.Driver");eltUrl.setText("jdbc:mysql://localhost/mySql");eltUser.setText("root");eltPassword.setText("xlc");// 添加到根节点eltDb.addContent(eltDriver);eltDb.addContent(eltUrl);eltDb.addContent(eltUser);eltDb.addContent(eltPassword);// 根节点设置属性eltDb.setAttribute("type", "mysql");Element root = doc.getRootElement();//This will return the root element for this document// root.removeChild("db");//删除节点root.addContent(eltDb);// 增加节点// 修改db节点中内容root.getChild("db").getChild("user").setText("system");root.getChild("db").getChild("password").setText("manager");XMLOutputter xmlOut = new XMLOutputter();// 设置XML格式Format fmt = Format.getPrettyFormat();fmt.setIndent(" ");fmt.setEncoding("utf-8");xmlOut.setFormat(fmt);xmlOut.output(doc, System.out);} catch (Exception e) {e.printStackTrace();}}}package com.ibm.test;import java.io.FileWriter;import java.io.IOException;import org.dom4j.Document;import org.dom4j.DocumentHelper;import org.dom4j.Element;import org.dom4j.io.OutputFormat;import org.dom4j.io.XMLWriter;/** * 写入文件或输出 * * @author xll * */public class Dom4jWrite {public static void main(String[] args) {Document doc = DocumentHelper.createDocument();doc.addProcessingInstruction("xml-stylesheet","type='text/xsl' href='db.xsl'");doc.addDocType("dbconfig", null, "db.dtd");// Element root=DocumentHelper.createElement("dbconfig");// doc.setRootElement(root);Element root = doc.addElement("dbconfig");Element eltDb = root.addElement("db");Element eltDriver = eltDb.addElement("driver");Element eltUrl = eltDb.addElement("url");Element eltUser = eltDb.addElement("user");Element eltPassword = eltDb.addElement("password");eltDriver.setText("com.mysql.jdbc.Driver");eltUrl.setText("jdbc:mysql://localhost/mySql");eltUser.setText("root");eltPassword.setText("xlc");eltDb.addAttribute("type", "mysql");try {// 设置输出格式OutputFormat outFmt = new OutputFormat(" ", true);outFmt.setEncoding("UTF-8");/**//* * PrintWriter pw = new PrintWriter(System.out); doc.write(pw); * pw.flush(); pw.close(); */// XMLWriter xmlWriter = new XMLWriter(System.out, outFmt);XMLWriter xmlWriter = new XMLWriter(new FileWriter("db.xml"),outFmt);xmlWriter.write(doc);xmlWriter.flush();xmlWriter.close();} catch (IOException e) {e.printStackTrace();}}}package com.ibm.test;import java.io.File;import java.io.FileWriter;import java.util.Iterator;import java.util.List;import org.dom4j.Document;import org.dom4j.Element;import org.dom4j.io.OutputFormat;import org.dom4j.io.SAXReader;import org.dom4j.io.XMLWriter;public class Dom4jModify {public Document modifyDocument(File inputXml) {try {SAXReader saxReader = new SAXReader();Document document = saxReader.read(inputXml);document.addDocType("dbconfig", null, "db.dtd");List list = document.content();// Iterator iter = document.nodeIterator();Iterator iter = list.iterator();Element element = (Element) iter.next();element.element("db").attribute("type").setValue("mysql");element.element("db").element("url").setText("jdbc:mysql://localhost/mySql");element.element("db").element("driver").setText("com.mysql.jdbc.Driver");element.element("db").element("user").setText("root");element.element("db").element("password").setText("xlc");// 设置输出格式OutputFormat outFmt = new OutputFormat(" ", true);outFmt.setEncoding("UTF-8");XMLWriter xmlWriter = new XMLWriter(new FileWriter("domdb-modified.xml"), outFmt);xmlWriter.write(document);xmlWriter.flush();xmlWriter.close();return document;} catch (Exception e) {System.out.println(e.getMessage());return null;}}public static void main(String[] args) throws Exception {Dom4jModify dom4jParser = new Dom4jModify();Document document = dom4jParser.modifyDocument(new File("domdb.xml"));OutputFormat outFmt = new OutputFormat(" ", true);outFmt.setEncoding("UTF-8");XMLWriter xmlWriter = new XMLWriter(System.out, outFmt);xmlWriter.write(document);xmlWriter.flush();xmlWriter.close();}}package com.ibm.xml;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.util.Iterator;import java.util.List;import org.jdom.Document;import org.jdom.Element;import org.jdom.JDOMException;import org.jdom.input.SAXBuilder;import org.jdom.output.XMLOutputter;/** * Jdom解析 * @author xll * */public class JdomXmlDocument implements XmlDocument{public void createXml(String fileName) {Document document; Element root; root=new Element("employees"); document=new Document(root); Element employee=new Element("employee"); root.addContent(employee); Element name=new Element("name"); name.setText("ddvip"); employee.addContent(name); Element sex=new Element("sex"); sex.setText("m"); employee.addContent(sex); Element age=new Element("age"); age.setText("23"); employee.addContent(age); XMLOutputter XMLOut = new XMLOutputter(); try { XMLOut.output(document, new FileOutputStream(fileName)); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }@SuppressWarnings("unchecked")public void parserXml(String fileName) {SAXBuilder builder=new SAXBuilder(false); try { Document document=builder.build(fileName); Element employees=document.getRootElement(); List employeeList=employees.getChildren("employee"); //System.out.println("employeeList.size()" + employeeList.size());for(Iterator iter = employeeList.iterator();iter.hasNext();){Element employee=(Element)iter.next(); List employeeInfo=employee.getChildren(); //System.out.println(employeeInfo.size());for(int i = 0;i < employeeInfo.size();i++){System.out.println(((Element)employeeInfo.get(i)).getName()+":"+((Element)employeeInfo.get(i)).getValue()); }}} catch (JDOMException e) {e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } }}package com.ibm.xml;import java.io.File;import java.io.FileWriter;import java.io.IOException;import java.io.Writer;import java.util.Iterator;import org.dom4j.Document;import org.dom4j.DocumentException;import org.dom4j.DocumentHelper;import org.dom4j.Element;import org.dom4j.io.SAXReader;import org.dom4j.io.XMLWriter;/** * Dom4j * * @author Administrator * */public class Dom4jXmlDocument implements XmlDocument {public void createXml(String fileName) {Document document = DocumentHelper.createDocument();Element employees = document.addElement("employees");Element employee = employees.addElement("employee");Element name = employee.addElement("name");name.setText("ddvip");Element sex = employee.addElement("sex");sex.setText("m");Element age = employee.addElement("age");age.setText("29");try {Writer fileWriter = new FileWriter(fileName);XMLWriter xmlWriter = new XMLWriter(fileWriter);xmlWriter.write(document);xmlWriter.close();} catch (IOException e) {System.out.println(e.getMessage());}}public void parserXml(String fileName) {File inputXml = new File(fileName);SAXReader saxReader = new SAXReader();try {Document document = saxReader.read(inputXml);Element employees = document.getRootElement();for (Iterator i = employees.elementIterator(); i.hasNext();) {Element employee = (Element) i.next();for (Iterator j = employee.elementIterator(); j.hasNext();) {Element node = (Element) j.next();System.out.println(node.getName() + ":" + node.getText());}}} catch (DocumentException e) {System.out.println(e.getMessage());}}}